//
// Created by 吴锐 on 2022/3/2.
//

#include "iostream"
#include "map"

using namespace std;

void test01(){
    map<int, int> m;
    m.insert(pair<int,int>(1, 10));
    m.insert(pair<int,int>(2, 20));
    m.insert(pair<int,int>(3, 30));

    if(m.empty()){
        cout << "map为空" << endl;
    }else {
        cout << "map不为空" << endl;
    }
}

int main(){
    test01();
    return 0;
}